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Caspian tern

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Definition of Caspian tern

: a large scarlet-billed tern (Sterna caspia or Hydropygne caspia) widely distributed in the northern hemisphere with one subspecies occurring in much of northern North America

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“Caspian tern.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Caspian%20tern. Accessed 16 Oct. 2021.

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